Multi-factor authentication: the one setting that stops most account takeovers

Passwords get stolen, guessed, reused, and phished. Multi-factor authentication, or MFA, means that a password alone is not enough to get in. It is one of the most effective protections available to a small organization, and it is usually inexpensive.

What MFA is

MFA asks for something in addition to your password: a code from an app, a prompt on your phone, a hardware key, or a fingerprint. If an attacker has your password but not your phone, they are stopped.

Where to turn it on first

  • Email. Email is the key to everything else, because password resets go there.
  • Remote access. VPNs, remote desktop, and anything that lets someone connect from outside your office.
  • Financial systems. Banking, payroll, and accounting platforms.
  • Administrator accounts. Anyone who can change settings or add users.
  • Business applications. Anything that holds client or employee data.

Not all methods are equal

Authenticator apps and hardware keys are stronger than text messages, although a text message is far better than nothing. Number-matching prompts help reduce the “approve everything” habit. If you have a choice, favor app-based or hardware methods for your most sensitive accounts.

Bringing people along

  • Explain the why. People accept a small daily step when they understand it protects their own accounts too.
  • Make it easy. Provide a short written guide or a quick walkthrough, and set aside time to help people with their phones.
  • Start with leadership. When owners and managers use it, everyone else follows.
  • Plan for lost phones. Have a simple process for resetting MFA when a device is replaced.

Watch for fatigue attacks

Attackers sometimes trigger repeated prompts hoping someone will tap “approve” to make them stop. Teach the rule: if you did not just try to sign in, do not approve, and tell IT right away.

MFA will not fix everything, but if you do only one thing this quarter, this is a strong candidate.

Not sure where your business stands? Request a technology assessment.

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